owl doesn't support for sampling?

[orangegei]

i use c# server request a sample to owl client, and get an Exception

ModelContextProtocol.Server.McpServerTool[1433779783]
"sample_ll_mfor_translation" threw an unhandled exception.
System.InvalidOperationException: Client does not support sampling.
at ModelContextProtocol.Server.McpServerExtensions.ThrowIfSamplingUnsupported(IMcpServer server)
at ModelContextProtocol.Server.McpServerExtensions.SampleAsync(IMcpServer server, CreateMessageRequestParams request, CancellationToken cancellationToken)
at WordMCPro.tools.document_tools.sampleLLMforTranslation(IMcpServer server, String content) in D:\dndx\intern\Csharp_code\WordMCPro\WordMCPro\tools\document_tools.cs:line 226
at Microsoft.Extensions.AI.AIFunctionFactory.ReflectionAIFunctionDescriptor.<>c__DisplayClass35_1.<b__9>d.MoveNext()
--- End of stack trace from previous location ---
at Microsoft.Extensions.AI.AIFunctionFactory.ReflectionAIFunction.InvokeCoreAsync(AIFunctionArguments arguments, CancellationToken cancellationToken)
at Microsoft.Extensions.AI.AIFunctionFactory.ReflectionAIFunction.InvokeCoreAsync(AIFunctionArguments arguments, CancellationToken cancellationToken)
at ModelContextProtocol.Server.AIFunctionMcpServerTool.InvokeAsync(RequestContext`1 request, CancellationToken cancellationToken)

[orangegei]

code is here

[McpServerTool, Description("Samples from an LLM using MCP's sampling feature for translation")]
    public static async Task<string> sample_LLM_for_translation(
        IMcpServer server, 
        [Description("The content to need to translate")] string content)
        // [Description("Maximum number of tokens to generate")] int maxTokens = 512
    {
        var samplingParams = CreateRequestSamplingParams(content ?? string.Empty, "sampleLLM");
        var sampleResult = await server.SampleAsync(samplingParams);

        return $"LLM sampling translation result: {(sampleResult.Content as TextContentBlock)?.Text}";
    }

    private static CreateMessageRequestParams CreateRequestSamplingParams(string context, string uri) //int maxTokens
    {
        return new CreateMessageRequestParams
        {
            Messages = [new SamplingMessage
                {
                    Role = Role.User,
                    Content = new TextContentBlock { Text = $"Resource {uri} context: {context}" },
                }],
            SystemPrompt = "You are a helpful test server.",
            // MaxTokens = maxTokens,
            // Temperature = 0.7f,
            IncludeContext = ContextInclusion.ThisServer
        };
    }